End extension table



1929. R. w. iRWlN ET AL END EXTENSION TABLE Original Filed Jan. 19, 19253 Sheets-Sheet l Inn-aurora Roberrwlvug'm Niohoms Tbckma NOV. 1929. R.w. IRWIN ET AL 1,736,533

END EXTENSION TABLE Original Filed Jan. 19, 1925 3 Sheets-Sheet 2 Nov.19, 1929.,

END EXTENSION TABLE Original Filed Jan. 19, 1925 s Sheets-Shet 5 l wmriL Roberf KU. [rwm Nmhomsficmus s M R. w. IRWIN ET AL 1,736,533

PM Nov. 19, 1929 UNITED STATES PATENT orrlcr.

ROBERT w. AND NICHOLAS IBEKIUS, OF GRAND RAPIDS, MICHIGAN, ASSIGNOBB TOROBERT w. IRWIN (XDMPLNY, OF GRAND RAPIDS, MICHIGAN, A QOBPORATION OIIICHIGAN END EXTENSION TABLE Application fled .Tanuary 19, 1925, SerialNo. 8,324. Renewed October 7, 1929.

This invention relates to extension tables. It is a primary object andpur ose of the present invention to provide a ta 1e wherein the'main topis securely attached to the sup porting under frame and is rigidtherewith and underwhich,ateachend,extensiontopsections may be housedwhen not in use, the same being capable of withdrawal and elevation intothe same plane with the top and provided with means whereby, after suchwithdrawal and elevation, the extension top sections may be movedbackward into abutting contact with the ends of the table top, therebeing provided in this manner an enlargement or extension 5 of thesurface of the table top. Each extension top section at each end of thetable is operable independently of the other so that the top may beincreased in size by the area of either one or both sections as may bedesired. 5 A further object of the invention is to provide a structureof this character which, while very economically made and of relativelysimple structure, is especially practical and effective in itsoperation, one very desirable feature of the invention consisting in thesecure or fixed relation of the main top to its supporting understructure. Many other objects and purposes of the invention, togetherwith novel construction and arrangements of parts for attaining thesame, will appear as understanding of the invention is had from thefollowing description taken in connection with the accompanyingdrawings,inwhich, Y Fig. 1 is a longitudinal vertical section throughthe upper part of the table, one of the extension top sections being inouter op.- emtive' position and the other in inner concealed orinoperative position.

' Fig. 2 isa fragmentary under-plan view of the construction shown inFig. 1.

Fig.4! is a view similar to Fig. 1 showing one of the extension topsections drawn outwardly to its extreme limit, wherein it is tilteddownwardly somewhat at its outer end, being thereafter elevated andmoved backwar so that its inner edge abuts against the end of the maintable top. I 4 is a section similar to Figs. 1 and 3,

showing one of the end extension top sections partially withdrawn.

Fig. 5 is a transverse vertical section throu h the upper part of thetable at one and t ereof, t e end extension top section being in upperoperative position.

Fig. 6 is a similar transverse section through the middle portion of thetable.

Fig. 7 is a fragmentary transverse section adjacent one corner of thetable illustrating the position of the extension section slides in theirlower inoperative position, and

Fi 8 is a perspective view of the table, one end t ereof being extendedandwith a' portion broken away to illustrate the under construction usedtherewith.

Like reference characters refer to like parts in the different figuresof the drawings.

The table main top 1 may be of any con ventional construction and,preferably, is rectangular in outline. Underneath this top is the suporting structure comprising a rectangular rame having sides 2 and ends3, at

p the corners of which posts 4 are secured. At

the upper edge of each side 2 an elongated block 5 is permanentlysecured, on which the top 1 rests and to which it is securely connected,thereby leaving open spaces 6 at each end of the table'between the underside of the top 1 and the upper edges of the sides I2 and 3 of the underframe.

A cross bar 7 is secured to and extends between the blocks 5 under thetable top 1. A second cross bar 8 is located directly below the bar 7extending between and being attached at its ends to supporting blocks 9permanently secured to the inner sides of the sides 2 to the underframe. Each of the ends 3 at each end thereof is cut away at its upperside adjacent the posts 4, thereby prov ding relatively deep slots 10,which at their upper portions, are somewhat widened as indicated at 11;and a short metal bar 12 is attached to the upper edge of each end 3 ofthe under frame at one endextending over the widened slotted portion 11,this being best shown in Fi s. 5 and 7. These bars 12 at their uppersides lie flush with the upper edges of the ends 3 of the under frame.

t each end of the table, an extension top inner ends being section 13having a len h the same as the 14, extending laterally therefrom and onthe opposite side of each bar 14 a somewhat elongated narrow block 18 ispermanently secured as by screws or other suitable connections, beinglocated on the bars 14 somewhat farther out than the pins 17.

One of these extension top sections-13is mounted at each end of thetable and, in the inoperative position thereof is located under thetable, being received in the open spaces6 between the lower side of thetable and the upper edges of the under frame sides and ends 2 and 3. Thebars 14, attached to .said sections, extend inwardly between the crossbars 7 and 8. On the lower bar 8, as shown in Fig. 6, guide blocks 8 areattached at the up er side separating the bars 14 serving as gm estherefor. With both of the extension top sections 13 under the main topa plain top is presented and the extension sections are out of sight andnot noticeable.

If it is desired to enlarge the table top at either or both ends, eitheror both of the sections 13 may be moved outwardly. In'the first part ofits movement, the section 13 will move straight outward or until theinclined parts 15 of the bars 14 come to the cross bars 7 and 8,whereupon the extension section will tilt downwardly at a slight angleas indicated at Fig. 4., W1th continued outward movement the extensionsection 13 is moved outward beyond the end of the top 1 or until thestop pins 17 engage with the adjacent corner posts 4, as shown in Fig.3. This is theoutermost position of the extension top section, after itreaches this point, the section 13 is elevated until the upper edges ofthe bars 14 bear against the under side of the main -top 1, whereu onthe extension section 13 is moved back, t e blocks 18 passing above theprojecting ends of the metal bars 12. This inward movement continuesuntil the inner, edge of section 13 abuts against the end of the top 1.Blocks 18, resting upon the bars 12, serve to support the extendedsection 13 in a plane coincident with the plane of the main top 1 andthe lower inner end portions 16 of the bars 14 are located between thecross bars 7 and 8 as shown in Fig. 1. While only one of the sections isshown extended, it is evident that both may be extended in the' samemanner if the top is tobe further enlarged.

To retract the extension section 13 it is necessary merely to draw thesame outwardly ironi the sitibn shown in Fig. 1 a) that shown in ig. 3,dropping the same downward, then moving the same inwardly whereupon theblocks 18 which pass'under the pro? jectingends of the bars 12 throu hthe widened portions 11 of the slots 10. movement continues until theinner edge of his inward the section 13 strikes against the end of theblocks 5.

The construction is very simple but exceedingly practical. The top. 1beingpermanently and rigidly secured to the under table structure isrigid at all times and doesnot change position, nor is it liable tobecome de-. tached from the rest of the table. Theoperation to bring anend extension member outwardly into extended position is very simple aswell as the reverse operation of retracting the same to inoperativeposition under the main table top. This construction has provedexceptionally satisfactory in practice.

While the drawings show the sections movable outwardly at the ends ofthe table it is obvious that the table may be extended at its sidesinstead of the ends, as shown, using thelsame structure. Accordingly theterm end is to be considered not as o fspe cific and limited meaning butto' have a broader significance. For example, when the extensionsections are mounted to be moved outwardly from the longer sides of thetable top such portions then become the 'endsof the table within themeaning of my invention and the meaning of the terms applied thereto inthe claims. Accordingly the invention" is not to be considered aslimited to'any particular specific disclosure made in the drawings butis to be considered as comprehensive of all forms of structure comingwithin such defined scope of the claims.

We claim:

1. In an extension table, a main top, an under supporting frame forthetop to which said top is rigidly attached, there being an open space atan end of the table between said main top and the supporting frame, anextension top section adapted to be located within said 0 en space whennot in use, bars fixedly. attac ed to said section slidably mounted onthe supportin frame for outward movement whereby t e extension topsection may be moved outwardly beyond the end of the table,'andinterengaging means on the adjacent end-of the supporting frame and onsaid bars for holding the extension top section in the same plane withthe main top when said section is elevated and moved with said attachedbars backward to bring its inner edge into abutting engagement with theend of the main top.

2. Inan extension table, a supporting. a

frame, a main top located over the supporting frame andrigidly connectedthereto, there being an open space between'an end portion extending end0 the frame an of the frame and said top, an extension top sectionadapted to be located within saidopen space when not in use, barsconnected to the extension section and passing through openings in theend of the supporting frame whereby said extension top sectionis'movably mounted for outward movement beyond the end of the main top,said openings in the end of the frame through which said bars passhaving a lateral enlargement, support- 1ng members attached to the endof the frame into said enlargements of the openings in t e end of thesupporting frame, and blocks connected to the slidable bars passingthrough said enlargement to said openings on outward movement of theextension top section and passing backwardly over the projecting ends ofthe supporting members when the extension top section is moved back intoabutting engagement with the end of the main top.

3. An extension table comprisin a frame having spaced apart sides and ens, an end of the supporting frame having openings therethrough which attheir upper are laterally enlarged, supporting members attached to saidend of the supporting frame havin one end extending into and over thelateral enlargements of said openings, upper and lower cross barscarried between the sides of the supporting frame, a main top locatedover the supporting frame and rigidly attached thereto, there being anopen space between the under side of the main top and the end portion ofthe frame, an extension top section adapted to be received in said openspace when not in use, slidably mounted bars attached to the extensiontop section assing through said openings in the end of t porting frameand between the cross bars, and a narrower elon ated block attached toeach of said sliding ars adapted to pass under the supporting members onoutward movement of the extension top section and over said supportingmembers on elevation of the section and movement back to bring its inneredge, into abutting engagement with the end of the main top.

4. In an extension table, a supporting frame having spaced a art sidesand ends, upper and lower cross bars extending between the sides of theframe, frame being provided with openings having lateral enlargements attheir upper ortions, supporting members attached to sai end of thesupporting frame and extending at one end into and over said lateralenlar ements to said openings, a main top locate above the supportingframe and secured'thereto, there bein an open space between one endportion 0 the top and the corresponding end portion of the supportingframe, sliding bars assing throu h said openings in the dbet'ween saidcross bars, said sliding bars adjacent their inner ends portions e supanend of the supporting.

and supporting frame, stops on the sion top section and above saidsupporting members on elevation of said section and backward movementthereof to bring its inner edge into abutting engagement with the end ofthe main top.

5. An extension table comprising a sup-- porting frame having sides andends, spaclng members rigidly connected to the sides of said supportingframe at and above the upper edges thereof and between their ends, amain to rigidly secured to said spacing members w ereby open spacesremain between the main top and ends of said supportin frame beyond theends of the spacing mem rs, extension top sections adapted to bereceived in said open spaces, bars fixed to said top sections carried bythe ends of saidsupportmg frame for slidably mounting the same forinward or outward movement whereby the sections may be moved outwardlybeyond the ends of the main top and thereafter elevated into the sameplane with the main top and moved backwardly to bring the inner edgesinto engagement with 'the ends of the main top, and means engaging withsaid bars when the extension top sections are moved backwardly forsupporting said extension top section in the same plane with the maintop when thus moved back into abutting engagement therewith. p

In testimony whereof we aflix our signatures.

ROBERT W. IRWIN. NICHOLAS BEKIUS.

